EP1690985A2 - Compacteur pour surfaces enneigées et dispositif de trace - Google Patents

Compacteur pour surfaces enneigées et dispositif de trace Download PDF

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Publication number
EP1690985A2
EP1690985A2 EP05027346A EP05027346A EP1690985A2 EP 1690985 A2 EP1690985 A2 EP 1690985A2 EP 05027346 A EP05027346 A EP 05027346A EP 05027346 A EP05027346 A EP 05027346A EP 1690985 A2 EP1690985 A2 EP 1690985A2
Authority
EP
European Patent Office
Prior art keywords
snow
snow compactor
track body
compactor according
track
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05027346A
Other languages
German (de)
English (en)
Other versions
EP1690985A3 (fr
Inventor
Klaus Kremer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bomag GmbH and Co OHG
Original Assignee
Bomag GmbH and Co OHG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bomag GmbH and Co OHG filed Critical Bomag GmbH and Co OHG
Publication of EP1690985A2 publication Critical patent/EP1690985A2/fr
Publication of EP1690985A3 publication Critical patent/EP1690985A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H4/00—Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow
    • E01H4/02—Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow for sporting purposes, e.g. preparation of ski trails; Construction of artificial surfacings for snow or ice sports ; Trails specially adapted for on-the-snow vehicles, e.g. devices adapted for ski-trails

Definitions

  • the invention relates to a snow compactor according to the preamble of claim 1 and a track device for use on a snow compactor.
  • Snow compactors are used for the treatment of snow surfaces, especially for winter sports. In this context, one also speaks of the preparation of the relevant snow surfaces, which are smoothed and compacted. Under the snow surfaces are (ski) slopes, cross-country trails, ski jumps, freestyle facilities such as half-pipes or fun parks to understand.
  • snow compacting machine The most common embodiment of such a snow compacting machine is a snow blower pulled by a snow groomer with heavy rubber, plastic or steel plates attached to it and partially multi-limbed.
  • snow blower pulled by a snow groomer with heavy rubber, plastic or steel plates attached to it and partially multi-limbed.
  • the snow and ice chunks are first chopped up by the snow blower and smoothed and compacted by the effect of the weight of the slabs pulled over the snow surface. Since these plates rest on the snow and compress the affected snow surface only by their weight, this is called a static compression.
  • the invention is therefore based on the object to provide a dynamic snow compactor, the smoothness compared to the previously disclosed solutions is further improved and has an increased range of use.
  • the snow compactor according to the invention is a dynamically acting compressor with a base plate which can be set in oscillation by an exciter device and acts flat on the snow to be compacted.
  • This in turn has a forward in a working direction of the snow compactor and upwardly bent front portion and also has a reinforcing structure.
  • This reinforcing structure can be a particularly light and rigid cell structure in a particularly advantageous manner.
  • the snow compactor has a suspension device for attachment to a towing vehicle, which is as vibration-dampened as possible in order not to transmit the vibrations from the snow compactor to the tractor.
  • the snow compactor according to the invention differs from the known compressors in particular in that the excitation device is arranged in the working direction behind the center of gravity of the snow compactor. As a result, the oscillation amplitude in the direction of the trailing edge of the snow compactor is increased and the compression effect is enhanced.
  • a predominant part of the bottom plate of the snow compactor is curved.
  • the snow compactor thus stands, compared to a compressor with a flat bottom plate, only on a very narrow strip, its footprint is very small in other words. This leads to a concentration of compaction forces on the relatively narrow tread strip. The compaction performance is particularly concentrated here, which has great advantages in particular when breaking up and shattering ice surfaces.
  • the snow compactor can literally sway into its best working position and always has a bent up to the front bottom plate at normal angles of inclination.
  • the snow compactor can slide well even with lowered front area, steep inclination changes or very deep bumps snow accumulations without jamming or bury itself in it.
  • the snow compactor can thus be used regardless of its angle of attack against the snowpack to be compacted.
  • the further improved running characteristics significantly expand the range of application.
  • a majority of the bottom plate is curved with a constant curvature. This facilitates the production and manufacture of the snow compactor, since conventional, circularly curved sheets or tools can be used. It is particularly advantageous if the curved portion of the bottom plate with constant curvature extends at least over two-thirds of the cross-sectional width of the snow compactor. Thus, a relatively large proportion of the snow compactor can be produced from uniformly bent components or sheets.
  • the base plate has at least two regions of different degrees of curvature, the region lying behind in the working direction having a greater radius of curvature and extending over at most a third of the cross-sectional width of the snow compactor.
  • the rear portion of the bottom plate is less curved than the front portion, which causes the snow compactor not so easily tilts backwards and at the same time has a large area with high curvature, which positively influences the sliding properties of the snow compactor, especially in undulating terrain ,
  • the specific relationship between flatter and heavier curvature provides the best possible compromise between concentrated compaction forces, tip-over stability and effective compaction area.
  • At least one track body for profiling the snow surface is arranged on the snow compactor.
  • This track body may be massive profile strips, the For example, grooved on its underside and are attached at the rear end of the snow compactor in a known manner transverse to the direction.
  • the snow compactor produces a groove structure in the compacted snow surface.
  • the compression of the snow surface which is much stronger than the static compressors, produces better support for the skiers' ski and ski poles. The skiers can therefore move more comfortably and effectively, which is why the prepared with the snow compactor invention cross-country skiing enjoy great popularity.
  • At least two track bodies which extend in their length substantially in the working direction, are arranged in pairs and parallel spaced on the snow compactor.
  • the track bodies then have at least a width which is slightly wider than a cross-country ski, a height which corresponds approximately to the height of a cross-country ski, and a substantially flat underside.
  • the track bodies are arranged spaced approximately hip-width apart, which corresponds to a clear distance of about 20 cm.
  • the track body is arranged on the underside of the bottom plate. This is the side of the bottom plate that faces the snow to be compacted.
  • the track body itself is releasably attached to the bottom plate. Suitable fasteners for this purpose may be, for example, screws or clamps.
  • the track body is attached to a track body bracket on the snow compactor.
  • This track body holder suitably has a bending-resistant holding arm, which is pivotable as possible.
  • the track body holder expediently has an adjusting means for adjusting the position and / or setting a track depth of the track body.
  • the adjusting means may be, for example, mechanical adjusting means, such as screws which are guided in slots, clamping screws, turnbuckles and the like. It is also expedient if the adjusting means is hydraulically driven. For example, a hydraulic cylinder can be used to adjust the track body mount. Then eliminates a complex and unpleasant in bad weather conditions for the operator adjustment of the adjusting by hand.
  • the track body is mounted on the pivotable support arm and pivotable in a working position behind the bottom plate working position.
  • the track body can be mounted on the snow compactor, but be brought into a rest position, in which he is not pressed into the snow to be compacted, so also leaves no trace. It is thus possible in a simple manner to use the snow compactor both for profiling and for smoothing snow surfaces.
  • the snow compactor can be used both for tracking Telemark tracks and skating tracks without the need to re-assemble or disassemble the track body is necessary. Skating tracks are usually 2 to 3 m wide, smooth, flat snow surfaces, while telemark tracks are understood to mean the surfaces structured with parallel grooves.
  • the track body is a rotatably mounted wheel.
  • This embodiment of the track body has the advantage that it can rotate with the snow to be compacted and causes only a slight friction.
  • the track body may also be a rotatably mounted roller profiled with annular elevations and / or depressions. This embodiment has the advantage that between the elevations of the track body contributes to a further smoothing of the compacted snow, while the elevations of the roller press the tracks in the snow.
  • the roller may also consist of several discs or roller segments. This has the advantage that the profile of the track body can be set individually by being stuck on each other by different thickness roll parts in a simple manner.
  • the track body mount has a flexible band strip on which at least one track body is attached.
  • the track body mount is therefore not mounted on but under the snow compactor and must be easy to bend due to the curvature of the bottom plate.
  • the tape strip is therefore a plastic mat, with metal sheet strips or fabric webs can be used.
  • the tape strip itself has at least one holding means and a clamping means for fastening the track body holder on the snow compactor.
  • the holding means is a claw or a clamp which can be hooked to one end of the snow compactor.
  • the tape strip has at least one tensioning means, which may be a tensioning screw.
  • the tape strip is pulled taut and pressed against the bottom plate of the snow compactor.
  • the track body are fixed, which are thus mounted in a simple manner on the underside of the bottom plate detachable.
  • the tape strip with the outer track bodies on a profiled strip attached to the bottom plate can be tensioned. This means that the tape strip is either fastened to the profiling strip itself or guided over the profiling strip.
  • the track body extends in its length over about one third of the cross-sectional width of the snow compactor.
  • This embodiment has the advantage that by turning the snow compactor the track bodies are rotated into a position in which they no longer press into the snow to be compacted. It is thus possible by turning the snow compactor to change the surface structure generated by him in the snow surface.
  • the driver of the tractor can turn the snow compactor into a position in which the track bodies are just not pressed into the snow, resulting in a smooth work surface.
  • the track body is curved in the working direction with decreasing height in the working direction. So it adapts well to the outer shape of the snow compactor. Furthermore, it is advantageous if the track body is a rigid body having an outer surface of the bottom plate and / or the shape of the Profiltechniksang correspondingly shaped top. So it can be placed easily on the outside of the bottom plate and in the case of existing screwed Profiltechniksangn simply put on these bars.
  • the track body itself advantageously has a convex or V-shaped underside which displaces the snow to be compacted to the sides, so that a locally increased compacting value is not generated in the surfaces touched by the track body.
  • the object is also achieved with a track device for use on a snow compactor with a track body and a track body holder as described above.
  • the snow compactor shown is pulled in a working direction A on the snow to be compacted, in this illustration, therefore, the left side, the back and the right side of the front of the snow compactor 1.
  • the snow compactor 1 has a curved bottom plate 3, which is pulled upwards, especially in the front area.
  • the snow compactor has a suspension device 4 for attachment to a preceding tractor, which is usually a snowcat.
  • the bottom plate 3 is stiffened with a reinforcing structure 5.
  • the reinforcing structure 5 consists of longitudinal walls 6 extending in the working direction, which are partially provided with holes or recesses 7 for weight reduction.
  • Transverse walls 8 run transversely to the longitudinal walls, so that the reinforcing structure as a whole forms a cell structure.
  • This reinforcing structure is covered in part by cover plates 9 in particular in the front region of the snow compactor upwards, so that no snow can penetrate into the reinforcing structure.
  • the excitation device 2 is arranged behind the center of gravity S.
  • the excitation device 2 is a conventional unbalance exciter with semicircular imbalances, which sit parallel to each other on a transverse to the working direction A extending rotary shaft 10.
  • This unbalance exciter shaft 10 of the snow compactor 1 is vibrated and acts so acts mainly with the rear of its base plate 3 surface on the below the snow compactor 1 snow.
  • the excitation device 2 sits in a trough-like exciter housing 11 which is closed with a removable cover 12, and is thus protected from obstructions by deposited snow.
  • the bottom plate 3 is constructed in three parts.
  • a in the working direction A front lying first segment 13 is a flat, straight plate to which a middle segment 14 connects, which is bent with a first constant radius of curvature 15.
  • the third base plate segment 15 connects, which begins in the embodiment shown here below the center of the exciter shaft 10 and extends to the rear in the direction of A rear end of the bottom plate 3 out.
  • the second radius of curvature 17 with approximately 1.4 m is approximately twice as large as the first radius of curvature 15 with 0.73 m.
  • Both curved bottom plate segments 14, 15 are thus bent up in a circle, but other curvature radii or curves of curvature can also be used.
  • the projections of the bottom plates 13, 14, 16 on a base surface result in the partial cross-sectional widths 38, 39, 40.
  • the total cross-sectional width B of the snow compactor 1 thus corresponds to the sum of the partial cross-sectional widths 38, 39, 40 and amounts to 0.974 m in one exemplary embodiment Working width of about 2.5 m to 3 m.
  • the sum of the partial cross-sectional widths 38 and 39 is greater than 2/3 of the total cross-sectional width B of the snow compactor 1.
  • both the excitation device 2 and the plate segment 16 sit recognizably in the rear third B / 3 of the snow compactor 1, the exciter shaft axis 10 around 0, 23 m from the rear edge of the snow compactor 1 is removed.
  • a wear protection 18 which consists in this embodiment of a tensioned on the bottom plate 3 plastic plate.
  • the wear protection 18 is hooked at the rear end of the bottom plate 3 in a hook 19 and locked by means of a screw 20 at the front end of the bottom plate 3.
  • a profiling strip 21 is mounted at the rear end of the wear protection 18 . This has a wave-shaped profile on its underside and extends As a result of the wavy structure of the profiling strip 21, the snow compactor 1 generates a corrugated structure in the compacted snow.
  • the suspension device 4 is a bow-shaped plate which is welded to the reinforcing structure and has two damping elements 22 on each of its sides. At these damping elements 22 of the snow compactor is vibration-damped at the holding arm, not shown here, of the towing vehicle, but substantially rotatably attachable. By rotation of the support arm of the tractor so the snow compactor 1 can be pivoted about an axis extending transversely to its working direction.
  • FIG. 2 shows a cross section of a second exemplary embodiment of the snow compactor 1 according to the invention, which is provided for the preparation of a classic track.
  • a track device 37 is attached to the snow compactor 1.
  • This consists of two, mounted at a distance of 20 cm, parallel track bodies 23 for profiling the snow surface 31 via two track body mounts 24 are attached to the snow compactor 1.
  • the track body 23 are aligned so that they sit at the rear end of the snow compactor 1. Due to the cross-sectional view of Fig. 1, however, the second track body and the second track body holder are hidden and not visible.
  • the track bodies 23 are in the embodiment shown here, metal disc wheels, which are rotatably mounted on the track body brackets 24.
  • the single track body mount 24 here consists of a pivotable rigid support arm 25, which in turn consists of two T-shaped plates which are screwed against each other by means of spacers.
  • the T-shaped support arm 25 is rotatably supported at one end on the snow surface compressor 1 in a holder 26.
  • the holding arm 25 is pivotally connected to a rod 27.
  • the rod 27 has an elongated hole 28 at its end opposite the holding arm 25. Through this slot 28, the rod 27 is adjustable in its longitudinal direction on a second bracket 29 fastened.
  • the holder 29 is in turn attached to the reinforcing structure 5.
  • the snow compactor 1 is simply tilted slightly backwards or twisted, so that the track body 23 mounted rigidly on the track body mount 24 is pressed into the snow 31.
  • the turning of the snow compactor 1 takes place by a twisting or angling of the holding arm of the tractor, not shown here.
  • FIG. 6 shows a fourth exemplary embodiment of the snow compactor 1 according to the invention, in which the track body mount 24 consists of a flexible plastic mat.
  • This soft plastic mat is provided at its end with wedge-shaped track bodies 23.
  • the track body support 24 penetrates the track body 23 and has a holding hook 33 on the end lying in the direction of work.
  • a U-shaped profile 34 is placed on the front edge of the snow compactor 1.
  • a turnbuckle 35 is fastened on the outside, which is fastened on its other side to the track body mount 24. With the help of the turnbuckle 35, it is thus possible to tension the track body mount 24 on the underside of the snow compactor.
  • the track body support 24 shown here serves to trace a single track. It is therefore slightly wider than a single track trail, so about 30 cm to 50 cm wide. If, for example, two tracks of tracks are to be tracked next to one another and at the same time, a second track body holder is simply stretched onto the base plate 3 in addition to the holder shown here. Correspondingly, the track body supports 24 are also narrower than the wear protection 18, which covers the entire working width which extends transversely to the working direction A. The individual track body mounts 24 are clamped directly on the continuous wear protection 18. Thus, the bottom plate 3 does not wear next to the track body mounts 24.
  • the profiling of the snow surface 31 can also be selected by the angular position of the snow compactor 1. If the track body 23 are pressed into the snow, only the angle of attack of the snow compactor must be changed. If the snow compactor is twisted so that its tail is pressed into the snow, the track body part 23 arranged in the rear region is automatically pressed into the snow surface 31. When the rear region is raised, the snow surface 31 is substantially compressed with the smooth central segment 14 of the base plate 3 and a smooth snow surface 31 is produced.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Road Paving Machines (AREA)
  • Road Paving Structures (AREA)
EP05027346A 2005-02-11 2005-12-14 Compacteur pour surfaces enneigées et dispositif de trace Withdrawn EP1690985A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202005002235U DE202005002235U1 (de) 2005-02-11 2005-02-11 Schneeflächenverdichter und Spurvorrichtung

Publications (2)

Publication Number Publication Date
EP1690985A2 true EP1690985A2 (fr) 2006-08-16
EP1690985A3 EP1690985A3 (fr) 2008-08-13

Family

ID=36525017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05027346A Withdrawn EP1690985A3 (fr) 2005-02-11 2005-12-14 Compacteur pour surfaces enneigées et dispositif de trace

Country Status (5)

Country Link
US (1) US20060283052A1 (fr)
EP (1) EP1690985A3 (fr)
CA (1) CA2535925A1 (fr)
DE (1) DE202005002235U1 (fr)
NO (1) NO20060671L (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7264531B2 (en) * 2005-01-31 2007-09-04 Ignacio Marc Asperas Method and apparatus for facilitating the construction of a snow man/woman
DE102005050629A1 (de) * 2005-10-21 2007-04-26 Bomag Gmbh Heckfinisher und Verfahren zur Glättung einer Geländeoberfläche
US9151012B2 (en) * 2011-08-15 2015-10-06 Paladin Brands Group, Inc. Dual-mode thumb for excavator
US9435090B1 (en) 2012-12-12 2016-09-06 Tube Shaper, LLC Groomer for forming lanes in snow
CN118007570A (zh) * 2024-04-07 2024-05-10 交通运输部公路科学研究所 基于激光扫平的压实雪跑道道面平整度控制设备及系统

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Publication number Priority date Publication date Assignee Title
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WO2004053232A1 (fr) * 2002-12-11 2004-06-24 Bomag Gmbh Plaque vibrante

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Publication number Priority date Publication date Assignee Title
NL84247C (fr) *
US2909970A (en) * 1954-01-11 1959-10-27 Jackson Vibrators Vibratory compactor for asphaltic and other materials
DE2023272A1 (de) * 1969-06-10 1970-12-17 Prinoth, Ernesto, Ortisei, Bozen (Italien) at 13.05,70
FR2207219A1 (fr) * 1972-11-21 1974-06-14 Barber Greene Co
AU6939181A (en) * 1981-04-10 1982-10-14 Dynapac Maskin Aktiebolag Compacting surfacing materials
WO2004053232A1 (fr) * 2002-12-11 2004-06-24 Bomag Gmbh Plaque vibrante

Also Published As

Publication number Publication date
DE202005002235U1 (de) 2006-06-22
NO20060671L (no) 2006-08-14
EP1690985A3 (fr) 2008-08-13
CA2535925A1 (fr) 2006-08-11
US20060283052A1 (en) 2006-12-21

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